FY-0256 2 in 1 PIR Infrared Sensors (Transmitter + Receiver) Wireless Doorbell Alarm Detector for Home / Office / Shop / Factory, US Plug Car DVRs & Accessories Alarm lock is simple and

Alarm lock is simple and convenient to operate

Compressure: H

Operating time: >4

high definition

transmission prompt

FY-0256 2 in 1 PIR Infrared Sensors (Transmitter + Receiver) Wireless Doorbell Alarm Detector for Home / Office / Shop / Factory, US Plug Car DVRs & Accessories Alarm lock is simple andFeatures 1. Adopts infrared detect technology. 2. No wiring design makes it simple to use and easy to install. 3. Long sensing distance. 4. 38 songs for choice in total, you can choose the song throgh click the music key on the side of receiver. 5. 3 levels of volume for adjust, you can adjust it by click the volume key on the side of receiver. 6. The receiver has the function to set voiced noiseless modes, you need to adjust it by click the volume